31 SSC CGL Quantitative Aptitude previous year questions on Compound Interest — options free on every question; 3 include the answer & explanation free, the rest unlock with PYQ Pass.
Q1 FREE PREVIEW
PYQ
If compound interest received on a certain amount in the 3rd year is Rs. 1,240, what will be the compound interest (in Rs) for the 4th year on the same amount at 9% rate of interest?
a1245.6
b1521.6
c1351.6
d1220.6
✓ Correct answer: c) 1351.6
ExplanationGiven, Compound Interest (C.I.) in 3rd year = Rs 1240 Rate = 9% We know, C.I for 4th year = C.I in 3rd year = Hence, Option C is the correct answer.
Q2 FREE PREVIEW
PYQ
What is the difference (in Rs.) between the compound interests on Rs. 4000 for 1 year at 12% per annum compounded yearly and half- yearly?
a14.4
b12.4
c10.4
d16.4
✓ Correct answer: a) 14.4
ExplanationGiven, Principal (P) = Rs 4000 If interest is compounded annually Rate = 12 % and Time = 1 year Amount = Compound Interest = Amount – Principal = 4480 – 4000 = Rs. 480 Now, if interest is compounded half-yearly Rate = % and Time = 2 half-year Amount = Compound Interest = 4494.4 – 4000 = Rs. 494.4 Required Difference = 494.4 – 480 = Rs. 14.4 Hence, Option A is the correct answer.
Q3 FREE PREVIEW
PYQ
The compound interest earned in two years at 15% per annum is Rs 20640 . What is the sum invested (in Rs)?
a64000
b60000
c56000
d52000
✓ Correct answer: a) 64000
ExplanationGiven, Rate of Interest (R) = 15 % Compound Interest(C.I) = Rs 20640 Time (T) = 2 years Let, sum invested (Principal) = Rs P We know P = 64000 Hence, Sum invested = Rs 64000 Hence, Option A is the correct answer.
Q4
PYQ
What is the compound interest (in Rs) for 1 year on a sum of Rs 20000 at the rate of 40% per annum compounding half yearly?
a8000
b8650
c8750
d8800
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Q5
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If compound interest received on a certain amount in the 2nd year is Rs 1200, what will be the compound interest (in Rs) for the 4th year on the same amount at 10% rate of interest?
a1452
b1320
c1552
d1420
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Q6
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A sum amounts to Rs18,600 after 3 years and to Rs 27,900 after 6 years, at a certain rate percent p.a., when the interest is compounded annually. The sum is:
aRs 11,800
bRs 12,400
cRs 14,400
dRs 14,600
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Q7
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The difference between the compound interest and simple interest on ₹ x at 12 % per annum for 2 years is ₹18. What is the value of x ?
a1,250
b1,280
c1,340
d1,300
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Q8
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The difference between the compound interest and simple interest on ₹ x at 7.5 % per annum for 2 years is ₹45. What is the value of x?
a7,000
b8,000
c9,000
d10,000
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Q9
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A sum of amounts to in 3 years at a certain rate percent per annum, interest compounded annually. What will amount of the same sum to in 2 years at the same rate on compound interest?
a₹ 15,640
b₹ 17,820
c₹ 17,280
d₹ 14,520
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Q10
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A sum of Rs.15,000 is lent at 16 % p.a. compound interest. What is the difference between the compound interest for the second year and the third year?
a₹ 544
b₹ 445.44
c₹ 454.88
d₹ 548
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Q11
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The difference between the compound interest and simple interest on ₹ x at 12 % per annum for 2 years is ₹ 43.20. What is the value of x?
a2,400
b2,800
c3,000
d2,500
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Q12
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The difference between compound interest and simple interest on ₹x at 15% per annum for 2 years is ₹9. What is the value of x?
a600
b400
c450
d500
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Q13
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The difference between the compound interest and simple interest on ₹ x at 7 % per annum for 2 years is ₹ 24.50. What is the value of x ?
a5400
b4800
c5000
d6000
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Q14
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The difference between the compound interest and simple interest on ₹ x at 11 % per annum for 2 years is ₹ 60.50. What is the value of x ?
a4500
b4000
c5000
d4800
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Q15
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The compound interest on a certain sum at 10% p.a. for 2 years is ₹ 1,201.60, interest compounded yearly. The sum is:
a₹ 5,400
b₹ 4,200
c₹ 4,800
d₹ 4,500
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Q16
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The simple interest on a certain sum at the end of three years at 5 % is ₹ 1,200. The compound interest on the same sum for the same period at the same rate is (interest compounded yearly):
a₹ 1,800
b₹ 1,261
c₹ 820
d₹ 1,260
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Q17
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The simple interest on a sum of ₹ 50,000 at the end of two years is ₹ 4,000. What would be the compound interest on the same sum at the same rate for the same period?
a₹ 4,040
b₹ 4,080
c₹ 4,008
d₹ 8,000
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Q18
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A sum of ₹ 3125 amounts to ₹ 3515.20 in 3 years at x% p.a., interest being compounded yearly. What will be the simple interest (in ₹) on the same sum and for the same time at (x+2)% p.a.?
a562.50
b554
c565.50
d550
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Q19
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What is the compound interest (in ₹) on a sum of ₹ 8192 for 1 years at 15% per annum, if interest is compounded 5-monthly?
a1740
b1640
c1735
d1634
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Q20
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What will be the amount of Rs 32000 at 20% per annum for 9 months, compounded quarterly?
a37044
b35087
c32000
d30876
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Q21
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A sum of ₹ 18,000 becomes ₹ 21,780 after 2 years of compound interest compounded annually. What will be the compound interest (in ₹) on the same sum for the same period if the rate of interest increases by 5% ?
a5,805
b4,670
c1,845
d5,500
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Q22
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The compound interest on a certain sum of money at 21% p.a. for 2 years is ₹ 11,138.40, when interest being compounded yearly. The total amount received (in ₹) after 2 years is:
a35,138.40
b31,538.40
c24,000.50
d28,315.40
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Q23
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What is the compound interest (in ₹) on a sum of (₹ 62,500) for 2 years at 12 % p.a., if the interest is compounded 8 monthly?
a18,342
b16,232
c13,428
d16,548
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Q24
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A sum of money was borrowed and paid back in two equal annual instalments of ₹ 980, allowing 4 % compound interest. The sum (in ₹, to the nearest tens) borrowed was:
a1,850
b1,960
c1,760
d2,050
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Q25
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Joseph deposited a total of Rs.52,500 in a bank in the names of his two daughters aged 15 years and 16 years in such a way that they would get equal amounts when they become 18 years old. If the bank gives 10% compound interest compounded annually, then what is the amount (in ₹) that Joseph had deposited in the name of his younger daughter?
a25500
b24500
c25000
d26000
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Q26
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The difference between compound interest compounded annually and simple interest on a certain sum at a rate of 15 % per annum for 2 years is ₹ 1,944. Find the compound interest compounded annually (in ₹) on the same sum for the same period at a rate of 10 % per annum.
a18,060
b18,144
c20,500
d27,216
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Q27
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What is the compound interest on a sum of ₹ 25,000 after three years at a rate of 12 per cent per annum interest compounded yearly?
a₹ 10,123.20
b₹ 9,824.00
c₹ 10,520.00
d₹ 9,956.86
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Q28
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Rajnish borrowed ₹1,500 from a bank and repaid the entire amount with interest in two equal annual instalments, the first instalment being paid a year after Rajnish borrowed from the bank. If the rate of interest was 40% per annum, compounded annually, then what was the value (in ₹) of each instalment paid by Rajnish?
a1125
b1470
c1225
d1350
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Q29
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Find the amount (integral value only) if a sum of ₹6,500 is being borrowed at 10% interest per annum for 2 years if interest is compounded half-yearly
a₹ 8,150
b₹ 7,900
c₹ 7,650
d₹ 8,250
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Q30
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If interest be compounded half-yearly, then find the compound interest on ₹8,000 at the rate of 20% per annum for 1 year.
a₹1,675
b₹1,690
c₹1,685
d₹1,680
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Q31
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The difference in compound interest on a certain sum at 10 % p.a. for one year, when the interest is compounded half yearly and yearly, is ₹ 88.80. What is the simple interest on the same sum for 1 years at the same rate?
a₹ 5,916
b₹ 5,986
c₹ 5,980
d₹ 5,920
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